Fourth, Professor Crawford assumes that competition must produce a commodity service to be considered competition.

FORBES: A Problem in Search of a Problem

Commodity futures are less vulnerable to competition than, say, bond futures, because they require a commodity to be delivered to a specified place.

ECONOMIST: Grains of truth

Starbucks is always going to face challenges: commodity pricing, growth in competition, consumer spending, etc.

FORBES: Is Bureaucracy Hurting Starbucks?